package com.zx.encryption;

import java.io.*;

/**
 * @PROJECT_NAME: Algorithm
 * @ClassName EncryptionCode
 * @Author lovexu
 * @Description TODO
 **/
public class EncryptionCode {
    public static void main(String[] args) throws IOException {
        decrypt("D:\\privateCode\\privateCode1.txt");
    }

    //加密
    public static void secret(String str) throws IOException {
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(str));
        String [] s=str.split("\\.");
        BufferedOutputStream bos = new BufferedOutputStream(new
                FileOutputStream("D:\\privateCode\\privateCode1."+s[1]));
        int n;
        long a=System.currentTimeMillis();
        while((n=bis.read())!=-1){
            bos.write(n+1);
        }
        long b=System.currentTimeMillis();
        bis.close();
        bos.close();
        System.out.println("加密拷贝成功！");
        System.out.println("加密用时："+(b-a)+"ms");
    }




    //解密
    public static void decrypt(String str) throws IOException{
        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(str));
        String [] s=str.split("\\.");
        BufferedOutputStream bos = new BufferedOutputStream(new
                FileOutputStream("D:\\privateCode\\privateCode2."+s[1]));

        int n;
        long a=System.currentTimeMillis();
        while((n=bis.read())!=-1){
            bos.write(n-1);
        }
        long b=System.currentTimeMillis();
        bis.close();
        bos.close();
        System.out.println("解密拷贝成功！");
        System.out.println("解密用时："+(b-a)+"ms");
    }
}
